CYPERACEJ2. 437 



acute at each end, slightly 2-lobed, shorter than the oblong awncd 

 glume ; leaves and sheaths pubescent. 



HAB. Meadows. N. Y. ; rare. June. U.Culm 18 inches 

 high. Spikes slender. Rachis flexuous. Glumes hyaline. 



ttt Staminiferous and pistiWferous spikes distinct. 

 * Staminiferous spike solitary. 



1. With 2 stigmas. 



44. C. novcR anglict Schw. # Torr. : sterile spike on a short pedun- 

 cle ; fertile 2 3, sessile, ovate, few-flowered, rather remote ; fruit 

 oval-subtriquetrous, rostrate, minutely pubescent, longer than the 

 ovate-mucronate glume ; culm slender, subdecumbent. 



HAB. Saddle Mountain. Mass. June, it. Culm 6 8 inches 

 high, with very small and narrow leaves. Spikes usually 4-flow- 

 ered, lower ones distant. 



45. C. aurea Nutt. : fertile spikes mostly 3, oblong, loose flowered, 

 subpendulous, rather approximate, lower ones pedunculate ; fruit obo- 

 vate or pyriform, obtuse, nerved, entire at the orifice, longer than the 

 ovate acute glume. 



HAB. Wet rocks. Can., N. Y. and Mass. W. to Mich. May, 

 June. If- Culm 4 10 inches high, subprocumbent, slender. 

 Fruit orange coloured when mature. 



2. With 3 stigmas. 



Pistilliferous spikes sessile, or with the peduncles inclosed. 



46. C. varia Muhl. ; fertile spikes 2 3, approximate, few-flowered, 

 ovate, subsessile ; sterile spike sessile, (or on a short peduncle ;) fruit 

 subglobose, acuminate, bifid, obtusely triangular, hispidly pubescent, 

 as long as the ovate acuminate glume. 



HAB. Dry woods. Hudson's Bay to Geor. April. 1. Culm, 

 8 12 inches high, erect, filiform. Fruit ventricose, nearly 

 globose. 



47. C. marginata Muhl. : sterile spike pedunculate ; fertile spikes 

 mostly 2, approximate, subglobose, subsessile ; fruit globose, woolly, 

 bidentate, longer than the ovate-oblong glume. 



HAB. Dry woods. Can. to Car. ; common. April. I/. Culm 

 8 12 inches high, slender. Sterile spike somewhat 3-sided. 

 Glumes brown, with a white margin. 



48. C. vestita Willd. : sterile spike mostly solitary, (rarely geminate, 

 with the upper one elongate,) pedunculate, cylindrical- oblong ; fertile 

 2, ovate-oblong, sessile, subapproximate, sometimes sterile at the sum- 

 mit ; fruit ovate, sub triquetrous, nerved, with a short rostrum, pubes- 

 cent, rather longer than the ovate mucronate glume. 



HAB. Wet grounds. Mass, to Geor. ; rather rare. May, June. 

 ! Culms in tufts 2 feet high. Glumes brown, with a white 

 margin. Fruit with a short and bifid beak. 



49. C. pubescens Muhl. : sterile spike subsessile ; fertile 3, oblong, 

 erect, rather loosely-flowered, the lowest on a short peduncle ; fruit 



37* 



